Finding the % of a number
25% of $200
$50
Increase 1500 by 25%. What is the new number?
1875
What is 30% of $120
36
What is the percent of change from 50 to 75?
50%
Sarah estimated the weight of an item to be 250g. After carefully weighing the item the actual weight was 240g. What is the percent error?
4.167%
10% of $800
$80
Summer's monthly rent is set to increase by 15%. If she currently pays $750 a month, what will she pay after the increase?
$862.5
19 is what percent of 65?
29.2%
Calculate the percent of change from12 to 15
25%
John estimated that 34 people would come to his party, but only 28 showed up. What is the percentage error?
21.4
15% of $60
$9
Sam buys a new sports car for $45,000. As soon as he drives it out of the showroom its value decreases by 12%. Find the value of the car when he leaves the showroom.
$39,600
There are 75 rooms in a hotel. 8% of the rooms are 2 bedroom suites. How many rooms are suites?
6
At a coffee shop, the price for coffee increased from$1.20 to $1.44. What is the percent increase?
20%
Maria thought that her shirt was $48. However because of a sale it was actually$38.40. Calculate her percent error.
25%
45% of $120
$54
Last year's Christmas Concert had 4700 attendees. This year, the amount dropped by 6%. How many people were there this year?
4418
1400 of the people at a rally were under age 21. If this represents 25% all the people, how many were at the rally?
5600
A jumper was originally listed as $46.47. It is now being sold for $76.49. Find the percentage change of the jumper?
64.60% increase
Adam measured the length of his room and found that it was 4 ft. His mom measured it and found out that it was actually 5.5ft. What is Adam's percent error?
27.27%
87% of $80
$69.60
The price of a heater selling for $234. Because it was damaged, it was sold for 14% off. Calculate the price of the heater.
$201.24
There are 58 teachers at a community college. About 14% of them teach chemistry. About how many chemistry teacher are there?
8
In a class, the number of students increased from 18 to 27. Calculate the percentage increase?
50%
The principal asked a student to do a head-count of all the students who attending the christmas party. She counted 53 students. After a recount, she realized that she missed 4 students who were using the restroom. What was her percentage error?
7.02%